Question

我有这个代码在我的iPhone应用程序中拍照：

-(IBAction) getPhoto:(id) sender {
    UIImagePickerController * picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;

    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera])  {
        picker.sourceType = UIImagePickerControllerSourceTypeCamera;
    }
    else{
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    }

    [self presentModalViewController:picker animated:YES];
}

然后我有另外一个控制器来管理拍摄的照片：

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(NSDictionary *)editingInfo {
    [picker.parentViewController dismissModalViewControllerAnimated:YES];
    imageTaken.image = image;
    NSLog(@"saved!");
}

我尝试在我的iPhone 4（iOS 4.something）上启动应用程序，在拍完照片并点击“使用”后，我得到一个白色屏幕。当直接在另一部手机上测试应用程序时，直接从XCode（这次是iOS 5）启动以检查日志，我点击“使用”但是没有任何反应，并且正确打印了日志。

你知道发生了什么吗？我认为图片的屏幕没有关闭，但我打电话给dismissModalViewController ....

谢谢，

Masiar

Answer 1

你应该以这种方式解雇模态视图控制器，

[self dismissModalViewControllerAnimated:YES];

最好使用imagePickerController:didFinishPickingMediaWithInfo:，因为其他方法已被弃用。

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    [self dismissModalViewControllerAnimated:YES];
    imageTaken.image = (UIImage *)[info objectForKey: UIImagePickerControllerEditedImage];
}

拍照后iPhone拍照导致白屏

1 个答案: